Volume 90, Number 1 www.aafp.org/afp American Family Physician 47 A 24-year-old asymptomatic man requested a chest radiograph for routine tuberculosis screening. He did not have difficulty breathing, palpitations, chest pain, or edema. His medical history was significant for scoliosis and Rubinstein-Taybi syndrome, a rare genetic condition that causes short stature, broad thumbs and toes, hirsu...

Radicular cystsare common odontogenic cyst of jaw bone which invariably presents as welldefined radiolucency around the apex of the involved tooth. It is diagnosed on routine radiography or causes a slow growing swelling, limited to apical region of a tooth. Radicular cyst presenting as unusually large maxillary lesions is uncommon. This paper reports two cases of large radicular cyst involving...

OBJECTIVE The purpose of this in vivo study was to compare the ability of digital tactile, digital radiographic and electronic methods to determine reliability in locating the apical constriction. MATERIALS AND METHODS Informed consent was obtained from patients scheduled for orthodontic extraction. The teeth were anesthetized, isolated and accessed. The canals were negotiated, pulp chamber a...

Background: The apical extent of instrument termination and final root-filling procedures have been found to be key prognostic factors in relation the outcome root canal treatment. precise location this point has always a challenge clinical endodontics. Until introduction contemporary electronic apex locators (EALs), conventional radiography was traditionally used determine working length. Sinc...

     Introduction: Objective: This study aimed to assess the possible variations in root canal anatomy and topography of the apices of first and second maxillary molars. Materials and methods: A total of 67 first and second maxillary permanent molars were collected. Access cavity was prepared and 2% methylene blue was injected. The teeth were demineralized by 5% nitric acid and cleared with met...

The purpose of this study was to evaluate the suitability of a digital radiograph registration and subtraction software for a sensitive and reliable assessment of the progress of chronic apical periodontitis. Ninety cases of teeth with chronic apical periodontitis have been studied. In each case, a preoperative radiograph was taken, root canals were prepared, and a Ca(OH)2 paste was placed in t...

OBJECTIVE To evaluate the frequency of Apical Root Resorption (ARR) after orthodontic treatment at 52-288 months using periapical radiography (PR) and cone beam computed tomography (CBCT). METHODS Radiographic images obtained from 58 patients, before (T1) and after orthodontic treatment (T2), and following 52-288 months of treatment were analyzed by three members of the Brazilian Board of Ort...